John Mayer, Bob Weir Duet on Dead Classic ‘Friend of the Devil’

John Mayer and the Grateful Dead’s Bob Weir stopped by Andy Cohen’s Watch What Happens Live clubhouse last night (June 28) to represent Dead and Company, and performed a snippet of “Friend of the Devil.”

Cohen, a self-professed Deadhead, could hardly contain his glee. He was almost excited when talking with the musicians about Dead trivia and John Mayer’s oft-discussed “guitar face.”

“I don’t mean to do the guitar face,” said Mayer. He added that the high stakes of playing Grateful Dead music before diehard fans adds to his consternation. “Not only [am I] lost in the music, I’m worried about falling off the bike. It’s a pained sexual face.”

Members of the Grateful Dead spinoff band are currently promoting the group’s summer tour. During his Bravo appearance, Mayer confirmed that his next album of solo music should appear next year.